DOCSLIB.ORG

Wireless Ethernet LAN (WLAN) General 802.11A/802.11B/802.11G FAQ

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Wireless Ethernet LAN (WLAN) General 802.11A/802.11B/802.11G FAQ Wireless Ethernet LAN (WLAN) General 802.11a/802.11b/802.11g FAQ Q: What is a Wireless LAN (WLAN)? Q: What are the benefits of using a WLAN instead of a wired network connection? Q: Are Intel WLAN products interoperable with other product brands? Q: What is Wi-Fi*? Q: What is IEEE 802.11b, 802.11g, and 802.11a? Q: What is the transmission range of WLAN products? Q: What data rates are available with a WLAN network connection? Q: What is an Access Point? Q: When do I need an Access Point? Q: How many simultaneous users can a single access point support? Q: How many users can a WLAN system support? Q: What is a Wireless Gateway? Q: What is the wireless SSID? Q: Why do 802.11b and 802.11g products operate on the 2.4 GHz Frequency range? Q: Why do 802.11a products operate in the 5 GHz Frequency range? Q: What can be done to secure a WLAN? Q: What is WEP? Q: What is WPA? Q: What is 802.1x? Q: What are Power Save Polling and Constant Awake Mode? Q: Is WLAN technology only for notebook computers? Q: Will WLANs receive interference from other wireless devices? From other WLANs? Q: Are all WLAN products (802.11, 802.11b, 802.11g, and 802.11a) interoperable? Q: Is a WLAN suitable for home use? Q: What is Authentication and Association? Q: What is a Client Workstation? Q: What is Ethernet? Q: What is a MAC Address? Q: What is a Wireless Ethernet Adapter? Q: Why is a site survey necessary? Info: 802.11a, 802.11b, 802.11g comparison chart. Q: What is a Wireless LAN (WLAN)? A: A WLAN is a type of Local Area Network (LAN) that uses high frequency radio waves rather than wires to communicate and transmit data. It is a flexible data communication system implemented as an extension to or as an alternative for, a wired LAN. Q: What are the benefits of using a WLAN instead of a wired network connection? A: ● Increased Productivity - WLAN provides "untethered" network and Internet access. ● Fast and Simple Network Set-up - There are no cables to install at a users desk or work area. ● Installation Flexibility - WLANs can be installed in places where wires can't, and they facilitate temporary set-up and relocation. ● Reduced Cost-of-Ownership - Wireless LANS reduce installation costs because there is no cabling; as a result, savings are greatest in frequently changing environments. ● Scalability - Network expansion and reconfiguration may be less complicated than expanding a wired network, Q: Are Intel WLAN products interoperable with other product brands? A: Yes. Intel WLAN products are compatible with products from different vendors employing the same technology (i.e., IEEE 802.11a, 802.11b, or 802.11g); Choosing products that are Wi-Fi* certified will help insure compatibility Q: What is Wi-Fi*? A: Wi-Fi* is the trademarked name that the Wi-Fi Alliance uses to signify WLAN product interoperability. The name stands for "wireless fidelity." Wi-Fi Alliance performs elaborate tests on WLAN products and those that pass the tests are awarded the Wi-Fi logo. Q: What is IEEE 802.11b, 802.11g, and 802.11a? A: IEEE 802.11b, 802.11g, and 802.11a are industry standard specifications issued by the Institute of Electrical and Electronic Engineers (IEEE). These specifications define the proper operation of Wireless Local Area Networks (WLANs). See the comparison chart below for an overview of these specifications. Q: What is the transmission range of WLAN products? A: Radio Frequency (RF) range, especially in indoor environments, is a function of transmitted power, antenna design, receiver design, and interference. Interactions with typical building objects, including walls, metal objects, windows, and even people, can affect how signals propagate, and thus what range and coverage a particular system achieves. The range of coverage for typical WLAN systems varies depending on the number and types of obstacles encountered. Coverage can be provided for a greater area through the use of multiple access points, wireless repeaters or wireless bridges. Q: What data rates are available with a WLAN network connection? A: 802.11b WLANs operate at speeds up to 11 Mbps. 802.11a and 802.11g WLANs operate at speeds up to 54Mbps. Q: What is an Access Point? A: An Access Point connects wired and wireless networks together and enables the sending and receiving of data between wireless clients and the wired network. Using multiple access points increases total system capacity and range. Users can "roam" between access points without losing their connection similar to the way a cellular phone can roam between cellular phone towers. Q: When do I need an Access Point? A: Access points are required for operating in “infrastructure” mode, but not for peer-to-peer (a.k.a. “ad-hoc” mode) connections. A wireless network only requires an access point when connecting notebook or desktop computers to a wired network. If you are not connecting to a wired network, there are still some important advantages to using an access point to connect wireless clients. First, a single access point can nearly double the range of your wireless LAN compared to a simple peer-to-peer network. Second, the wireless access point acts as a traffic controller, directing all data on the network, allowing wireless clients to run at maximum speed. Finally, an access point can be your central connection to a DSL or cable modem service for sharing an Internet connection. Q: How many simultaneous users can a single access point support? A: There are two limiting factors to how many simultaneous users a single access point can support. First, some access point manufacturers place a limit on the number of users that can simultaneous connect to their products. Second, the amount of data traffic encountered (heavy downloads and uploads vs. light) can be a practical limit on how many simultaneous users can successfully utilize a single access point. Installing multiple access points can overcome both of these limitations. Q: How many users can a WLAN system support? A: The number of users is virtually unlimited. The number of users can be expanded by installing multiple access points. By installing multiple access points in the same location, set at different frequencies (channels), the wireless network can expand to accommodate additional simultaneous users in the same area. Similarly, a WLAN can support more users by installing additional access points in various locations in the building. This increases the total number of users and allows roaming throughout the building or across the campus. Q: What is a Wireless Gateway? A: A wireless gateway is a special type of access point which allows wireless network clients to share an Internet connection (DSL or cable modem). Wireless gateways typically include features such as NAT and VPN support which may not be found in simple access points. Q: What is the wireless SSID? A: The wireless SSID, also known as the ‘Network Name’, is the Service Set Identification for your radio network (this item is case sensitive: use capital and lower case letters as shown in the SSID) The Service Set Identifier (SSID) controls access to a given wireless network. This value MUST match the SSID of any and all access points and clients that you want to communicate with. If the value does not match, access to the system is not granted. The SSID can be up to 32 case sensitive characters. Q: Why do 802.11b and 802.11g WLAN products operate in the 2.4 GHz frequency range? A: This frequency range is called the ISM (Industrial, Scientific and Medical) band. The ISM band has been set aside by regulatory agencies for unlicensed use by a variety of products including wireless networks, cordless phones, microwave ovens and some low power scientific and medical equipment. The fact that a license is not required for a product to operate in this frequency range has greatly accelerated the development of wireless networking products. See the comparison chart below for an overview of the 802.11a, 802.11b and 802.11g specifications. Q: Why do 802.11a WLANS operate in the 5 GHz frequency range? A: This frequency is called the UNII (Unlicensed National Information Infrastructure) band. Like the 2.4 GHz ISM band used by 802.11b and 802.11g products, this range has been set aside by regulatory agencies for unlicensed use by a variety of products. A major difference between the 2.4 GHz and 5 GHz bands is that fewer consumer products operate in the 5 GHz band. This reduces the chances of problems due to RF interference. See the comparison chart below for an overview of the 802.11a, 802.11b and 802.11g specifications. Q: What can be done to secure a WLAN? A: Using a WEP key is the basic security mechanism which is available with all 802.11a, 802.11b and 802.11g devices. Newer security mechanisms such as Wi-Fi Protected Access (WPA) and 802.1x are also available with some products. Q: What is WEP? A: WEP (Wired Equivalent Privacy) is an optional IEEE 802.11 feature used to provide data security that is equivalent to that of a typical wired LAN. WEP uses data encryption to provide a basic level of security for WLAN users. WEP allows the administrator to define an "encryption key" which is used to encrypt data before it is transmitted through the airwaves. When WEP is enabled, all stations (clients and Access Points) are required to have the same WEP key. Network access is denied to anyone who does not have the correct key.
Load more

Recommended publications
  • Life Cycle of Municipal Wi-Fi
    A Service of Leibniz-Informationszentrum econstor Wirtschaft Leibniz Information Centre Make Your Publications Visible. zbw for Economics Tseng, Chien-Kai; Huang, Kuang-Chiu Conference Paper Life Cycle of Municipal Wi-Fi 14th Asia-Pacific Regional Conference of the International Telecommunications Society (ITS): "Mapping ICT into Transformation for the Next Information Society", Kyoto, Japan, 24th-27th June, 2017 Provided in Cooperation with: International Telecommunications Society (ITS) Suggested Citation: Tseng, Chien-Kai; Huang, Kuang-Chiu (2017) : Life Cycle of Municipal Wi- Fi, 14th Asia-Pacific Regional Conference of the International Telecommunications Society (ITS): "Mapping ICT into Transformation for the Next Information Society", Kyoto, Japan, 24th-27th June, 2017, International Telecommunications Society (ITS), Calgary This Version is available at: http://hdl.handle.net/10419/168493 Standard-Nutzungsbedingungen: Terms of use: Die Dokumente auf EconStor dürfen zu eigenen wissenschaftlichen Documents in EconStor may be saved and copied for your Zwecken und zum Privatgebrauch gespeichert und kopiert werden. personal and scholarly purposes. Sie dürfen die Dokumente nicht für öffentliche oder kommerzielle You are not to copy documents for public or commercial Zwecke vervielfältigen, öffentlich ausstellen, öffentlich zugänglich purposes, to exhibit the documents publicly, to make them machen, vertreiben oder anderweitig nutzen. publicly available on the internet, or to distribute or otherwise use the documents in public. Sofern die Verfasser die Dokumente unter Open-Content-Lizenzen (insbesondere CC-Lizenzen) zur Verfügung gestellt haben sollten, If the documents have been made available under an Open gelten abweichend von diesen Nutzungsbedingungen die in der dort Content Licence (especially Creative Commons Licences), you genannten Lizenz gewährten Nutzungsrechte. may exercise further usage rights as specified in the indicated licence.
    [Show full text]
  • Long Term Evolution (LTE)
    IOSR Journal of Electronics and Communication Engineering (IOSR-JECE) e-ISSN: 2278-2834,p- ISSN: 2278-8735. Volume 7, Issue 3 (Sep. - Oct. 2013), PP 36-42 www.iosrjournals.org Long Term Evolution (LTE) 1 2 3 4 Emad Kazi , Rajan Pillai , Uzair Qureshi , Awab Fakih 1,2,3,4 (Electronics and Telecommunication, Anjuman-I-Islam’s Kalsekar technical campus (AIKTC), Mumbai University, India) Abstract:The number of people using mobile phone in the world has exceeded 4.5 billion and this figure is continuing to grow. For the past several years, mobile data traffic such as internet access, the downloading of music and video communication has been nearly tripling every year. With the popularity of smartphones, mobile data traffic will increase 200 times in the 7 to 8 years upto 2020.There are high expectations that Long Term Evolution (LTE) which is known as 3.9G wireless system will be a new service platform that can support a huge amount of mobile data traffic. This paper describes the features, technology and network architecture of LTE & also provides an overview of next generation telecommunication network LTE, which is started commercially in December 2010 in Japan (started by DOCOMO), realizing high speed wireless access. It also outlines the further trends towards a further speed increase. Keywords-Circuit Switching, GSM, HSPA, LTE, Packet Switching, WiMAX I. Introduction In times when mobile devices are getting more popular the mobile network are becoming more and more important too. Websites are not same they used to be 10 years ago. They consist of with quality pictures, animation, flash application and more.
    [Show full text]
  • Wireless Networking Summary 11-4 Bluetooth, Wimax, and RFID Questions and Problems
    11_0131358383_ch11s.qxd 8/1/08 1:04 PM Page 412 Wireless 11 Networking CHAPTER 11_0131358383_ch11s.qxd 8/1/08 1:04 PM Page 413 CHAPTER OUTLINE 11-1 Introduction 11-5 Securing Wireless LANs 11-2 The IEEE 802.11 Wireless LAN 11-6 Configuring a Point-to-Multipoint Standard Wireless LAN: A Case Study 11-3 802.11 Wireless Networking Summary 11-4 Bluetooth, WiMAX, and RFID Questions and Problems OBJECTIVES ● Define the features of the 802.11 wireless ● Examine how site surveys are done for wire- LAN standard less LANs ● Understand the components of the wireless ● Investigate the issues of securing a wireless LAN LAN ● Explore how wireless LANs are configured ● Explore how to configure a point-to-multi- point wireless LAN KEY TERMS WLAN pseudorandom WiMAX Basic Service Set (BSS) hopping sequence BWA ad hoc OFDM NLOS access point U-NII last mile transceiver MIMO Radio Frequency Extended Service Set Wi-Fi Identification (RFID) (ESS) SSID backscatter hand-off site survey Slotted Aloha roaming inquiry procedure beacon CSMA/CA paging procedure WPA DSSS piconet EAP ISM pairing RADIUS FHSS Passkey 413 11_0131358383_ch11s.qxd 8/1/08 1:04 PM Page 414 11-1 INTRODUCTION WLAN This chapter examines the features and technologies used in the wireless local area Wireless local area network network (WLAN). Wireless networking is an extension of computer networks into the RF (radio frequency) world. The WLAN provides increased flexibility and mo- bility for connecting to a network. A properly designed WLAN for a building pro- vides mobile access for a user from virtually any location in the building.
    [Show full text]
  • Analysis of Wifi and Wimax and Wireless Network Coexistence
    International Journal of Computer Networks & Communications (IJCNC) Vol.6, No.6, November 2014 ANALYSIS OF WIFI AND WIMAX AND WIRELESS NETWORK COEXISTENCE Shuang Song and Biju Issac School of Computing, Teesside University, Middlesbrough, UK ABSTRACT Wireless networks are very popular nowadays. Wireless Local Area Network (WLAN) that uses the IEEE 802.11 standard and WiMAX (Worldwide Interoperability for Microwave Access) that uses the IEEE 802.16 standard are networks that we want to explore. WiMAX has been developed over 10 years, but it is still unknown to most people. However compared to WLAN, it has many advantages in transmission speed and coverage area. This paper will introduce these two technologies and make comparisons between WiMAX and WiFi. In addition, wireless network coexistence of WLAN and WiMAX will be explored through simulation. Lastly we want to discuss the future of WiMAX in relation to WiFi. KEY WORDS WiMAX, WiFi, wireless network, wireless coexistence, network simulation 1. INTRODUCTION With the development of multimedia communication, people need wireless broadband access with higher speed, larger coverage and mobility. The emergence of WiMAX (Worldwide Interoperability for Microwave Access) technology met the people's demand for wireless Internet to some extent. If wireless LAN technology (WLAN) solves the access problem of the "last one hundred meters", then WiMAX technology is the best access solution of the "last mile". Though WiMAX is an emerging and extremely competitive wireless broadband access technology, the development prospects of its market is still unknown. Hybrid networks as a supplement to cell based or IP packet based services, can fully reflect the characteristics of wide network coverage.
    [Show full text]
  • Wireless LAN/MAN Modem Product Directory
    Wireless LAN/MAN Modem Product Directory Compiled by Barry McLarnon, VE3JF. Please send comments, corrections and additions to [email protected]. Introduction After a long hiatus, I've started working on updating these pages again. Currently I'm concentrating on checking the vendor info and URLs, and then I'll get more into the product data and other stuff. I've dropped the color coding to highlight changes, as it was too much of a headache to maintain. Instead, I'm keeping a in which I'll record the changes as I make them. This is a survey of currently available wireless RF modem products suitable for wireless LAN and MAN applications. At the moment, this survey includes only those products which are suitable for unlicenced operation in the ISM bands: 900 MHz (902-928 MHz), 2.4 GHz (2400-2483.5 MHz) and 5.8 GHz (5725-5850 MHz). Some of these products are intended for very short range wireless applications, while others are designed to be used as longer-haul point-to-point wireless bridges, and some can be used in either role. No attempt has been made to differentiate between these usages in this survey. Also, I don't necessarily list every product in each vendor's wireless product line. Some product lines have many different variants, and the tables would get too unwieldy if I tried to list them all, but I try to include some representative products from each manufacturer. I tend to omit the "access point" products, and products in which the WLAN modem is integrated into something else, such as a portable computer.
    [Show full text]
  • Packet Tracer – Configuring Wireless LAN Access
    Packet Tracer – Configuring Wireless LAN Access Topology Addressing Table Device Interface IP Address Subnet Mask Default Gateway G0/0.10 172.17.10.1 255.255.255.0 N/A R1 G0/0.20 172.17.20.1 255.255.255.0 N/A G0/0.88 172.17.88.1 255.255.255.0 N/A PC1 NIC 172.17.10.21 255.255.255.0 172.17.10.1 PC2 NIC 172.17.20.22 255.255.255.0 172.17.20.1 PC3 NIC DHCP Assigned DHCP Assigned DHCP Assigned WRS2 NIC 172.17.88.25 255.255.255.0 172.17.88.1 Objectives Part 1: Configure a Wireless Router Part 2: Configure a Wireless Client Part 3: Verify Connectivity Scenario In this activity, you will configure a Linksys wireless router, allowing for remote access from PCs as well as wireless connectivity with WPA2 security. You will manually configure PC wireless connectivity by entering the Linksys router SSID and password. © 2013 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public. Page 1 of 3 Packet Tracer – Configuring Wireless LAN Access Part 1: Configure a Wireless Router Step 1: Connect the Internet interface of WRS2 to S1. Connect the WRS2 Internet interface to the S1 F0/7 interface. Step 2: Configure the Internet connection type. a. Click WRS2 > GUI tab. b. Set the Internet Connection type to Static IP. c. Configure the IP addressing according to the Addressing Table. Step 3: Configure the network setup. a. Scroll down to Network Setup. For the Router IP option, set the IP address to 172.17.40.1 and the subnet mask to 255.255.255.0.
    [Show full text]
  • 87.35 Wireless Local Area Network (LAN)
    BUSINESS POLICIES AND PROCEDURES MANUAL INFORMATION SECURITY 87.35.1 New 7-20 Information Technology Services 509-335-4357 Wireless Local Area Network (LAN) Management OVERVIEW Wireless networks allow for accelerated delivery of network connectivity at a lower cost than traditional wired networks. Because of this, wireless networks have overtaken wired networks in terms of total data transmitted and have become a cornerstone of digital service delivery. Wireless networks present unique challenges in their administration, including the following: • Shared Spectrum – Wireless data networks using the IEEE 802.11 specification operate in the 2.4 GHz or 5 GHz radio spectrums. Both frequencies must be shared by all applications utilizing them in the same coverage area. This can be a problem if adjacent departments in the same building or area independently operate wireless local area networks (LANs). Problems may also be caused in the 2.4 GHz spectrum by other competing applications, such as microwave ovens or some cordless telephones. • Nonoverlapping Channels – Both frequencies are limited by the number of nonoverlapping channels that are available with the 2.4 GHz frequency limited to only three nonoverlapping channels and the 5 GHz frequency limited to 23 nonoverlapping channels. • Security – Wireless networks have unique security requirements to prevent rogue devices from connecting to, or interfering with, the WSU network. For the above reasons the following requirements are necessary. See BPPM 87.01 for definitions related to this section. Purpose The wireless LAN policy (BPPM 87.35) provides assurance of the security and operability of the wireless LAN segments thought out the University. Scope This policy applies to all institutional business units, workforce members, and institutional information systems that collect, store, process, share, or transmit institutional data.
    [Show full text]
  • Wireless Communications PURPOSE the Purpose of This Policy Is to Define Connection to the District’S Network Through Wireless Networking
    Effective Date: 10/23/2019 Fifth Judicial District Authorized By: Department of Correctional Services Policy and Procedural Manual Jerry L. Evans, District Director Fifth Judicial District Division: Administration Policy Code: Department of Correctional Services Unit(s): District Wide Public Access Policy Number: A021 Subject: Wireless Communications PURPOSE The purpose of this policy is to define connection to the District’s network through wireless networking. These standards are designed to minimize the potential exposure of the District from damages which may result from unauthorized use of District resources. Damages include the loss of sensitive or confidential data, intellectual property, damage to public image, damage to critical District internal systems, etc. SCOPE This policy applies to all District employees, contractors, vendors and agents with a District issued computer and other equipment used to connect to the District network. BACKGROUND With the Institute of Electrical and Electronics Engineers (IEEE) ratification of the 802.11b standard for wireless networking in 1999 and the subsequent proliferation of interoperable, affordable products that support that standard, wireless LAN technology (WLAN) has established itself as an important complement to the traditional wired data network because of the mobility they provide. 802.11b WLAN technology is also beneficial for gaining network access in locations that are difficult, expensive, or inconvenient to wire. Examples include outdoor areas, conference rooms, rooms with solid walls (to avoid running cables in unattractive surface-mounted conduit), and structures with asbestos, and historical buildings with strict regulations governing modifications. Despite these advantages, 802.11b WLANs have their limitations. For example, they are an order of magnitude slower than wired LANs.
    [Show full text]
  • Wireless LAN Networking White Paper
    Wireless LAN Networking White Paper Introduction • Roaming capability is desired; e.g., maintaining connectivity from almost anywhere inside a Wireless technology has helped to simplify home or business networking by enabling multiple computer • Network access is desired outdoors; e.g., users to simultaneously share resources outside a home or office building in a home or business without additional or intrusive wiring. These resources might include a broadband Internet connection, network Wireless LANs in the Office printers, data files, and even streaming audio and video. This kind of resource sharing has An 802.11 network is the ideal solution for a become more prevalent as computer users network administrator in many respects. No have changed their habits from using single, longer is it a requirement that every workstation stand-alone computers to working on networks and conference room be wired up to hubs and with multiple computers, each with potentially switches with cables in hard-to-reach areas. different operating systems and varying Wireless networking allows for impromptu peripheral hardware. U.S. Robotics wireless meetings in cafeterias, hallways, courtyards, networking products offer a variety of solutions or wherever inspiration strikes while providing to seamlessly integrate computers, peripherals, real-time LAN connectivity for business and data. applications such as sending e-mail, working on spreadsheets on shared drives, and Wireless networking enables the same capabilities conducting market research. and comparable speeds of a wired 10BASE-T network without the difficulties associated with laying wire, drilling into walls, or stringing Wireless LANs in the Home Ethernet cables throughout an office building Wireless networking has become commonplace, or home.
    [Show full text]
  • User Guide Model Number RAC2V1A 802.11Ac Wave 2 Router
    User Guide Model Number RAC2V1A 802.11ac Wave 2 Router C2V1A Router User Guide 1 Table of Contents 1. Overview ............................................................... 5 1.1. Introduction .................................................................................................. 5 2. Product Overview ............................................... 6 2.1. About The Router ....................................................................................... 6 2.2. What's in the Box? ..................................................................................... 6 2.3. Items You Need ........................................................................................... 6 2.4. About This Manual ...................................................................................... 7 3. System Requirements ........................................ 8 3.1. Recommended Hardware ........................................................................ 8 3.2. Windows ........................................................................................................ 8 3.3. Mac OS ........................................................................................................... 8 3.4. Linux/Unix ..................................................................................................... 8 3.5. Mobile Devices ............................................................................................. 8 4. Installing the Router ........................................... 9 4.1. Front Panel ...................................................................................................
    [Show full text]
  • Bluetooth and Wi-Fi Wireless Protocols: a Survey and a Comparison Erina Ferro and Francesco Potorti`, Institute of the National Research Council (Isti—Cnr)
    ACCEPTED FROM OPEN CALL BLUETOOTH AND WI-FI WIRELESS PROTOCOLS: A SURVEY AND A COMPARISON ERINA FERRO AND FRANCESCO POTORTI`, INSTITUTE OF THE NATIONAL RESEARCH COUNCIL (ISTI—CNR) ABSTRACT ging. Another advantage lies in the way new wireless users can dynamically join or leave the Bluetooth and IEEE 802.11 (Wi-Fi) are two network, move among different environments, communication protocol standards that define a create ad hoc networks for a limited time, and physical layer and a MAC layer for wireless then leave. Wireless networks are simple to communications within a short range (from a deploy, and in some cases cost less than wired few meters up to 100 m) with low power con- LANs. Nevertheless, the technological chal- sumption (from less than 1 mW up to 100 mW). lenges involved in wireless networks are not triv- Bluetooth is oriented to connecting close devices, ial, leading to disadvantages with respect to serving as a substitute for cables, while Wi-Fi is cabled networks, such as lower reliability due to oriented toward computer-to-computer connec- interference, higher power consumption, data tions, as an extension of or substitution for security threats due to the inherent broadcast cabled LANs. In this article we offer an overview properties of the radio medium, worries about of these popular wireless communication stan- user safety due to continued exposition to radio Bluetooth and IEEE dards, comparing their main features and behav- frequency, and lower data rates. iors in terms of various metrics, including Currently the wireless scene is held by two 802.11 (Wi-Fi) are capacity, network topology, security, quality of standards: the Bluetooth and IEEE 802.11 pro- service support, and power consumption.
    [Show full text]
  • Ts 124 244 V12.2.0 (2015-04)
    ETSI TS 1124 244 V12.2.0 (201515-04) TECHNICAL SPECIFICATION Universal Mobile Telelecommunications System ((UMTS); LTE; Wireless LALAN control plane protocol for trusteted WLAN access to EPC; Stage 3 (3GPP TS 24.2.244 version 12.2.0 Release 12) 3GPP TS 24.244 version 12.2.0 Release 12 1 ETSI TS 124 244 V12.2.0 (2015-04) Reference RTS/TSGC-0124244vc20 Keywords LTE,UMTS ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Siret N° 348 623 562 00017 - NAF 742 C Association à but non lucratif enregistrée à la Sous-Préfecture de Grasse (06) N° 7803/88 Important notice The present document can be downloaded from: http://www.etsi.org/standards-search The present document may be made available in electronic versions and/or in print. The content of any electronic and/or print versions of the present document shall not be modified without the prior written authorization of ETSI. In case of any existing or perceived difference in contents between such versions and/or in print, the only prevailing document is the print of the Portable Document Format (PDF) version kept on a specific network drive within ETSI Secretariat. Users of the present document should be aware that the document may be subject to revision or change of status. Information on the current status of this and other ETSI documents is available at http://portal.etsi.org/tb/status/status.asp If you find errors in the present document, please send your comment to one of the following services: https://portal.etsi.org/People/CommiteeSupportStaff.aspx Copyright Notification No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm except as authorized by written permission of ETSI.
    [Show full text]